食品科学 ›› 2010, Vol. 31 ›› Issue (9 ): 284-287.doi: 10.7506/spkx1002-6630-201009064

• 营养卫生 • 上一篇    下一篇

东海红藻龙须菜的营养成分分析及评价

周峙苗,何 清,马晓宇   

  1. 温州大学生命与环境科学学院
  • 收稿日期:2009-08-31 出版日期:2010-05-01 发布日期:2010-12-29
  • 通讯作者: 周峙苗, E-mail:zsm1226@wzu.edu.cn
  • 基金资助:

    温州市科技局科技计划项目(S2005B003)

Evaluation of Nutritional Components in Gracilaria lemaneiformis

ZHOU Shi-miao,HE Qing, MA Xiao-yu   

  1. School of Life and Environmental Science, Wenzhou University, Wenzhou 325027, China
  • Received:2009-08-31 Online:2010-05-01 Published:2010-12-29
  • Contact: ZHOU Shi-miao E-mail:zsm1226@wzu.edu.cn

摘要:

分析龙须菜(Gracilaria lemaneiformis)的主要营养成分、18 种氨基酸及矿物质的含量,并与其他藻类如海带、紫菜、羊栖菜等进行营养学对照评价。结果表明,龙须菜的主要成分是多糖类和粗纤维,占藻体的59.4%,蛋白质含量18.9%,在几种海藻中较高。氨基酸组成均衡,必需氨基酸(EAA)占氨基酸(TAA)总量的36.6%,必需氨基酸与非必需氨基酸的比值(EAA/NEAA)为0.58;呈味氨基酸占总量的51.5%;谷氨酸、天门冬氨酸、亮氨酸、丙氨酸等含量相对较高。脂肪含量较低,为0.8%。矿物质和维生素含量丰富,其中Mg、Fe、Ca、Na、Zn 等含量都很高,尤其是Fe、Mg 含量高于海带、紫菜。 因此龙须菜是一种高膳食纤维、高蛋白、低脂肪的富含矿物质的食用海藻。

关键词: 龙须菜, 营养学评价, 分析, 氨基酸

Abstract:

Nutritional components including amino acids and minerals in Gracilaria lemaneiformis collected from Wenzhou Eastern Sea area were analyzed and compared with other seaweeds such as Laminaria japonica, Porphyra haitanensis, Hizikia fusiformis and Undaria pinnatifida for evaluating their nutritional values. Results indicated that polysaccharides and crude fibers in Gracilaria lemaneiformis reached up to 59.4%. The total protein in Gracilaria lemaneiformis was 18.9%, which was higher than that of other seaweeds. Amino acid compositions of protein in Gracilaria lemaneiformis remained a balance status with the ratios of 36.6% for EAA/TAA and 0.58 for EAA/NEAA. The content of amino acids for flavor development was 51.5% of total amino acid. In addition, glutamic acid, aspartic acid, alanine, leucine, proline, serine and methionine exhibited higher contents and crude fat exhibited a lower level in Gracilaria lemaneiformis. Minerals and vitamins were rich in Gracilaria lemaneiformis, especially for Mg, Fe, Ca, Na and Zn. Moreover, Fe and Zn were higher than other seaweeds. Therefore, Gracilaria lemaneiformis might be the safe and healthy seaweed containing higher dietary fibers and proteins, lower fat and richer minerals.

Key words: Gracilaria lemaneiformis, nutritional value evaluation, analysis, amino acid

中图分类号: